diff --git a/pkgs/tools/typesetting/xmlroff/default.nix b/pkgs/tools/typesetting/xmlroff/default.nix
index 2177937221a..f8b0ddbfac5 100644
--- a/pkgs/tools/typesetting/xmlroff/default.nix
+++ b/pkgs/tools/typesetting/xmlroff/default.nix
@@ -41,5 +41,6 @@ stdenv.mkDerivation rec {
 
   meta = {
     platforms = stdenv.lib.platforms.unix;
+    license = stdenv.lib.licenses.bsd3;
   };
 }